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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrBatchTarget.h"
#include "GrBatchAtlas.h"
#include "GrPipeline.h"
static const size_t DRAW_BUFFER_VBPOOL_BUFFER_SIZE = 1 << 15;
static const int DRAW_BUFFER_VBPOOL_PREALLOC_BUFFERS = 4;
static const size_t DRAW_BUFFER_IBPOOL_BUFFER_SIZE = 1 << 11;
static const int DRAW_BUFFER_IBPOOL_PREALLOC_BUFFERS = 4;
GrBatchTarget::GrBatchTarget(GrGpu* gpu)
: fGpu(gpu)
, fFlushBuffer(kFlushBufferInitialSizeInBytes)
, fIter(fFlushBuffer)
, fNumberOfDraws(0)
, fCurrentToken(0)
, fLastFlushedToken(0)
, fInlineUpdatesIndex(0) {
fVertexPool.reset(SkNEW_ARGS(GrVertexBufferAllocPool, (fGpu,
DRAW_BUFFER_VBPOOL_BUFFER_SIZE,
DRAW_BUFFER_VBPOOL_PREALLOC_BUFFERS)));
fIndexPool.reset(SkNEW_ARGS(GrIndexBufferAllocPool, (fGpu,
DRAW_BUFFER_IBPOOL_BUFFER_SIZE,
DRAW_BUFFER_IBPOOL_PREALLOC_BUFFERS)));
}
void GrBatchTarget::flushNext(int n) {
for (; n > 0; n--) {
fLastFlushedToken++;
SkDEBUGCODE(bool verify =) fIter.next();
SkASSERT(verify);
BufferedFlush* bf = fIter.get();
// Flush all texture uploads
int uploadCount = fInlineUploads.count();
while (fInlineUpdatesIndex < uploadCount &&
fInlineUploads[fInlineUpdatesIndex]->lastUploadToken() <= fLastFlushedToken) {
fInlineUploads[fInlineUpdatesIndex++]->upload(TextureUploader(fGpu));
}
GrProgramDesc desc;
const GrPipeline* pipeline = bf->fPipeline;
const GrPrimitiveProcessor* primProc = bf->fPrimitiveProcessor.get();
fGpu->buildProgramDesc(&desc, *primProc, *pipeline, bf->fBatchTracker);
GrGpu::DrawArgs args(primProc, pipeline, &desc, &bf->fBatchTracker);
int drawCount = bf->fVertexDraws.count();
const SkSTArray<1, GrVertices, true>& vertexDraws = bf->fVertexDraws;
for (int i = 0; i < drawCount; i++) {
fGpu->draw(args, vertexDraws[i]);
}
}
}
void* GrBatchTarget::makeVertSpace(size_t vertexSize, int vertexCount,
const GrVertexBuffer** buffer, int* startVertex) {
return fVertexPool->makeSpace(vertexSize, vertexCount, buffer, startVertex);
}
uint16_t* GrBatchTarget::makeIndexSpace(int indexCount,
const GrIndexBuffer** buffer, int* startIndex) {
return reinterpret_cast<uint16_t*>(fIndexPool->makeSpace(indexCount, buffer, startIndex));
}
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